Feed-water filter.



PATENTED OCT. 30, 1906;

H. E; FEROHEN. FEED WATER FILTER. APPLICATION P ILED JUNE 5,1906.

0 0 9 G 0 00 090000 0 o O o o o o Q 0 Q oe o o I INVENTOR l/enr yl'.ircken W/TNESSES:

ATTORNEY.

UNITED STATES PATENT OFFICE.

HENRY E. FER-CHEN, OF VANCOUVER, BRITISH COLUMBIA, CANADA, ASSIGN OR OFON E-HALF TO ALEXANDER EASLER, OF VANCOUVER,

CANADA.

FEED-WATER FILTER.

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed June 5, 1906. Serial No. 320,349-

citizen of the United States of America, re-

siding at the city of Vancouver, in the Prov- 1nce of British Columbia,Canada, have invented a new and useful Feed-VVater Filter,

of which the followin is a specification.

This invention re ates to an improved means for freeing the water ofcondensation of amarine or other condensing enginefrom suspended oil orgrease before such water is passed into the hot-well for return to theoiler through the feed-pump. There are .many feed-water filters designedto effect "purpose is at once simple and efficient and comprises an opentrough into which the water from the pump is delivered and within Whicha sufficient head of water is retained to natural tendency is assisted barrest violent flow and to afford op ortunity to the sus ended particlesof oil an grease to rise to tlie surface and aggregate, which theintroduction of. partitions under an over which the 'water isconstrained to flow and by the introduction of removable gauze screenswhich will retain the-collected particles, While allowing the water topass.

I also construct the trough to surround the overflow-downtake to thehot-well, by which means]: not only economize s a'ce, but the changingdirection of the flow 0 water causes a series of eddies tobe formedwhich further facilitate the ag regation of the oil particles and givesthem etter opportunity to rise to the surface. With thls arrangement thescreens may successively be removed for I cleansing without interruptionof the service smallerscale developed on theline AA in screen 4 which isremovab Fig. 1, which indicates the course of the water from inlet tooverflow; and Fig. 3, a cross-.

section on the line B B in Fi 1.

Resting upon the upper edge of the walls of the hot-well, which arerepresented by 2, is'a rectan ular box 5, across one end of which isdivide off by a partition 6 a receiving-compartment'7, into which thewater from the pump is delivered through a pi e 3 upon a orizontalperforated screen 4, t e object of which screenis to distribute the flowand prevent violent agitation by the inflow of the Water in thereceiving-compartment 7.

From the partition 6 a partition 8 extends round a rectangular opening10 in the bottom of the box 5 and back to the partition 6, forming awall round three sides of the outlet 10, the fourth side (that towardthe receiving-compartment) having an overflow-wall 11 the' height ofwhich is such as will retain the desired head of water within the trough12 thus formed round the overflow-outlet 10.

The trough 12 is connected to the receiving-compartment 7 by a passage13 through the partltion 6 in the eve of the bottom, and a similar underpassage 14 through the inner wall 8 connects the other end of the trough12 with theoverflow division 15.

In the end of the trough adjacent to the in- I let-passage 13 is apartition 16, the depth of which is about the same as that of theoutletoverfiow 11, and at intervals throughout the length of the trough12 are gauze cross-screens 17. These screens 17 are removable forurposes of cleansing, being vertically slidab e in grooves provided inthe walls.

In 0 eration the height of the artition 16 and o the overflow-wall 1.1wil preserve a head of water in thereceiving-compartment 7 and in thetrough 12, and as the passage 14 from the com artment 7 to the trough isin the lower leve and violent agitation due to the inflow is checked bthe perforated e, the urerwater only will passto the trough. he upwardflow from the passage 13 over the u per edge of the (partition '16 willbring the oil articles towar and aggre ate and will not, in oppositionto their s ecific gravity, again sink.

As tlie water flows on through the trough the screens will intercept theaggregated particles of oil and grease and perrrit the purer water topass through the screens, and at the the surface, where-m any wilcontact corners where the direction of the flow is changed slight eddiesare formed, which are favorable to the aggregation and flotation of theoil particles.

At the end of the trough the partition 8 holds back the upper strata,which may still carry oil particles while the purer water flows throughthe passage 14 and is delivered over the -retaining overflow-wall 11 tothe hot-well. 1

I claim 1. As a filter for the removal ofgrease and oil from feed water;an elongated open trou h having at the end in which the water is deivered a receiving-compartment with a horizontal removable perforateddistributin plate and at the other end an overflow-Wal that will retainthe trough practically full of Water, a passage from the receivincompartment to the trough in the levelof the bottom, a partitionadjacent over which the water may flow, a partition at the other end adjacent to the overflow havin an under passage, and a series of remova legauze screens throu bout the len th of the trou h. j

2. a filter for the removal of oi or grease from feed-water; an opentrough surrounding a rectangular downward aperture, one of the end wallsof which aperture is lower than the other walls of the trough to form anoverflow into the central aperture, a partition producedfro m one of thesides of the aperture terminating the trough beyond the overflow, areceivingcompartment across the end of the trough adjacent to suchtermination," a passage in the level of the bottom from thereceiving-compartment'to the beginning of the trough, anoverflow-partition across the trough adjacent to such entering passage,an underflow-partition across the box adjacent to the outlet-overflow,and a series of removable gauze screens across the trough.

3. As a filter for the removal of oil or grease from feed-Water; thereceiving-receptacle 7 having the perforated screen 4, the passage 13communicating with the open trough 7 surrounding the downward'aperture10, the overflow-partition 16 adjacent to the inletpassage, theoverflow-partition 1J1 adjacent to the outlet 10, theunderfiow-partition 8 adjacent to the overflow 11 and the removablegauze screens 17.

4. A filter of the class described comprising an open trough, having areceiving-compartment at one end and .an overflow-wall at the other end,and an intermediate compartment between the overflow-wall and thereceivingcompartment, a perforated distributing-plate within thereceiving compartment, said trough having a passage from thereceivingcompartment to the intermediate compartment in the level of thebottom, a partition in the intermediate compartment adjacent the passa ebetween the receiving-compartment an the intermediate compartment overwhich the water may flow, a partition adjacent the overflow-Wall at theother end of the trough having an under passage, and a series of screensthroughout the intermediate chamber of the trough, substantially asshown and described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HENRY E. FEROHEN.

Witnesses ALEX EASLER, ROLAND BRITTAIN.

